Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438 |
Resumo: | We used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality. |
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Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.Brangus-IbagéTouroSêmenWe used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality.Marilise M. Horn, UFRGS; JOSE CARLOS FERRUGEM MORAES, CPPSUL; CARLOS MIGUEL JAUME EGGLETON, CPPSUL; Maria I. A. Edelweiss, UFRGS; Adriano Rosado.HORN, M. M.MORAES, J. C. F.JAUME, C. M.EDELWEISS, M. I. A.ROSADO, A.2018-08-24T00:54:29Z2018-08-24T00:54:29Z2018-08-2320052018-08-24T00:54:29Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-08-24T00:54:35Zoai:www.alice.cnptia.embrapa.br:doc/1094438Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-08-24T00:54:35falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-08-24T00:54:35Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
title |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
spellingShingle |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. HORN, M. M. Brangus-Ibagé Touro Sêmen |
title_short |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
title_full |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
title_fullStr |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
title_full_unstemmed |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
title_sort |
Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome. |
author |
HORN, M. M. |
author_facet |
HORN, M. M. MORAES, J. C. F. JAUME, C. M. EDELWEISS, M. I. A. ROSADO, A. |
author_role |
author |
author2 |
MORAES, J. C. F. JAUME, C. M. EDELWEISS, M. I. A. ROSADO, A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Marilise M. Horn, UFRGS; JOSE CARLOS FERRUGEM MORAES, CPPSUL; CARLOS MIGUEL JAUME EGGLETON, CPPSUL; Maria I. A. Edelweiss, UFRGS; Adriano Rosado. |
dc.contributor.author.fl_str_mv |
HORN, M. M. MORAES, J. C. F. JAUME, C. M. EDELWEISS, M. I. A. ROSADO, A. |
dc.subject.por.fl_str_mv |
Brangus-Ibagé Touro Sêmen |
topic |
Brangus-Ibagé Touro Sêmen |
description |
We used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2018-08-24T00:54:29Z 2018-08-24T00:54:29Z 2018-08-23 2018-08-24T00:54:29Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Genetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438 |
identifier_str_mv |
Genetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503461175296000 |